139620 has 48 divisors (see below), whose sum is σ = 423360. Its totient is φ = 34176.

The previous prime is 139619. The next prime is 139627. The reversal of 139620 is 26931.

It is not an unprimeable number, because it can be changed into a prime (139627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 691 + ... + 869.

It is an arithmetic number, because the mean of its divisors is an integer number (8820).

2¹³⁹⁶²⁰ is an apocalyptic number.

139620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (211680).

139620 is an abundant number, since it is smaller than the sum of its proper divisors (283740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

139620 is a wasteful number, since it uses less digits than its factorization.

139620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204 (or 202 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 139620 is about 373.6575972732. The cubic root of 139620 is about 51.8779187403.

It can be divided in two parts, 1 and 39620, that added together give a triangular number (39621 = T₂₈₁).

The spelling of 139620 in words is "one hundred thirty-nine thousand, six hundred twenty".